Reading between the lines this move tells me they don't trust the starting pitching.

I don't think that is it. I think Noneck was correct. The bullpen has been used a lot (especially Nate Jones and Matt Lindstrom) and the Sox are on a 10 game trip with no days off. They probably don't want to blow out the bullpen in April. I'm just surprised they called up Heath instead of Omogrosso who had a great Spring.

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The very existence of flamethrowers proves that some time, somewhere, someone said to themselves, "You know, I want to set those people over there on fire, but I'm just not close enough to get the job done." -George Carlin

I don't think that is it. I think Noneck was correct. The bullpen has been used a lot (especially Nate Jones and Matt Lindstrom) and the Sox are on a 10 game trip with no days off. They probably don't want to blow out the bullpen in April. I'm just surprised they called up Heath instead of Omogrosso who had a great Spring.

Plus Omogrosso pitched great last year in limited time. While I figured they would recall a pitcher, I though it would be Omogrosso, Marinez or even Stewart before Heath.